Temperature controlling mechanism for internal-combustion engines



IARR SQO A. B. IVIODINE.

TEMPERATURE CONTROLLING MECHANISM FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED DEC. 29, I919.

1&1

Patented Oct. 24, I922.

izz /Z; LZZ/ RRTR'UR R. lldORlIFlR, OF RRCTRR, WTSGOFTSTR'.

TEMPERATURE CRR'TROLLTRG MECHANISM FUR WTRRR'RL-UUFMRUSTION ENGINES.

application filed Rccember all, 1918. herlal Ito. 848.2%.

To all whom it may concern." 7 lie it known that l, Airrnun R. MODINE, a citizen of the United States, residing at Racine, in the county of Racine and State of Wisconsin, have invented certain new and usefullm rovements in a Temperature Controlling echanism for Internal Combustion En ines.

ll y invention relates to means for controlling the velocity of the cooling fluid passing through the radiator of an internal combustion engine whereby the temperature of the radiatoris maintained within normal limits. The object of my invention is to produce a simple, reliable and highly efficient device of the kind described whereby the velocity of the cooling medium through the radiator is increased to correspond with any increase in the temperature of the circulatin liquid.

To t 's end my invention consists in the novel construction, arrangement and comblnation of parts herelnshown and described and more particularly pointed out in the claim.

lln the accompanying drawings wherein like or similar reference characters indicate like or corresponding, parts:

Fig. 1 is a central longitudinal section of my improved controlling mechanism and the associated parts of an internal combustion engine. ,Q

' i 2 is an elevation of a slightly modined orm of my device.

- Fig. 3 is a detail of a slightly modified form of a controlling motor for my device.

In the form shown in Fig. l of the drawings, l is a portion of the water jacket of an internal combustion engine; 2 is a bracket for supporting the fan 3 for controllin the velocity of the cooling medium throng the radiator and 4 is the member for rotating the fan which is in the form shown comprises a belt-pulley rotatably mounted upon the stud 5 which is in turn rigidly attached to the bracket 2. The fan 3 is provided with a huh 8 rotatably mounted upon the stud 5 and provided with an annular friction face 7 adjacent the pulley 4i: adapted to co-operate with a friction face 8 formed of fiber or other suitable material attacheclto the hub 9 of the pulley 4t; the. o posite'endof the hub 8 is provided wit an antirfriction bearin 10 of any suitable form or construc tion a apted to co-operate with the ca l-l at the outer end of the stud h for-centre 'ng the position of the hub upon the stud. The cap ll is movable longitudinally of the stud 5 and a rod 12 is attached to the cap and extends longitudinally through the stud with a part it extending at the opposite end thereof and connected by a link 15 to a plunger 18, the link 15 being pivotally mounted intermediate its end upon the bracket 17 attached to the water jacket of the englne. A liquid tight chamber 18 is positioned within the Water jacket 1 surrounded by the circulating medium in the water jacket and the chamber 18 is sufiiciently filled with a suitable liquid to control the position of the plunger 16. The several parts are so constructed and arranged and the chamber 18 is provided with sufiicient liquid to operate the several parts to permit the pulley 4L to freely rotate upon the stud without rotating the hub 6 and fan 3. As the temperature of the circulating medium in the jacket increases however the temperature of the Fluid in the chamber 18 will also increase thereby expanding the liquid and forcing the plunger 16 outward thus draw-- ing the cap ll toward the ulley i and forcing the, friction face 7 o the fan against the friction surface 8 of the pulley thus causing the fan 3 to operate thereby increasing the velocity of the cooling medium through the radiator. As the temperature increases the speed of the fan will obviously also increase until it reaches the full speed of the ulle l or the maximum speed intended or t e fan.

In the form shown in Fig. 2 the as shown in Fig. 1 except that the link 20 is pivotally attached at one end as at 21 to the racket 22 and at the opposite end at is several parts are constructed substantially the same connected by a link 25 to a plunger 26 cooperating with a liquid chamber 27 substantiall the same as that shown in Fig. l

except t at in this form the,chamber 27 is positioned in the upper reservoir 28 of the radiator and the rod 29 corresponding to 27 in Figs -'link 32 as shown. Wh

, position the bellows 'dia hragm 30 at the exterior of the water jac et, and exposed to a current of air or other disturbing influ once, a shield or hood 33 may be provlded to enclose the diaphra 30 to protect the same or if preferred, the bellows diaphragm may be podtioned within the water jacket or in any other portion of the circulating system.

Having thus described my improvement it is obvious that various immaterial modifications maybe made in my device without tion liquid and permitting the passage of a l.

by Letters Patent departin om the spirit of my invention, hence I 0 not wish to be 'understood as limiti'ng myself to the exact form or construcshown. What I claim as 1s: In adevice .of. 'the kind described, a radiator adapted to contain a circulating new and desire to secure in fluid therethmugh, in combination witha an for producing a flow of said cooling liquid through the radiator, a hollow drivsaid fan, said fan 1 shaft for operatin ng lidably mounted on bemg rotatablyand s said shaft, driven means mtatably and slidu bly mounted on ,said'shaft, a friction memq ber between said driven means and said fan .f'or drivingly connecting said fan and driven means to said shaft, means slidable through said hollow shaft and'causi said fan and driven parts to be slid on sai shaft relative to one another whereb between said fan and riven parts is variu and thermostatic means automatically conthe amountof slit) trolled by the temperature of the liquid whereby said last mentioned means is caused to be shd through said hollow shaft.

In teaimony whereof, I have hereunto signed my name in the presence of two subscribing With-w AR HUR B. MODINE.

With! Bmxorm Cmmims,

Btm'mx U. Hm. I 

